John yuel



.'(Ndmodel.)

LYUEL MUSIC DESK POR PIANOS.k No. 503,822. Patented-Aug. 22, 1893.

F/GJ.

UNITED STATES PATENT OFFICE.

JOHN YUEL, OF NEWv YORK, N. Y.

MUSIC-DESK FOR PIANOS.

SPECIFICATION forming part. of Letters Patent No. 503,822, dated August22, 1893.

Application tiled April 24., 1893.

To all whom it may concern:

Be it known that I, JOHN YUEL, of New York city, New York, have inventedan Improved Music-Desk for Pianos, of which the following is aspecification.

This invent-ion relates to a music desk hinged to the inner face of thefall of a piano and so constructed that as the fall is opened or closed,the desk is automatically raised or lowered.

In the accompanying drawings Figure l is a face view of the upper partof a piano provided with my improved music desk. Fig. 2 is a crosssection of the fall showing the desk lowered; Fig. 3 a cross section ofthe fall with the desk raised; Fig. 4 an inner face view partly insection of part of the fall; Fig. 5 a section on line 5, 5, Fig. 3.

The letter d represents the fall of a piano forte hinged by hinges d tothe case h. To the inner face of the fall d, there is hinged by hingesc', the music rack or desk c. This rack is provided at its upper edgewith a iinger c2 (Fig. 5) which engages a slot d', of a bar (l, free toslide within a groove or mortise in the fall a. At its lower end the bard, projects out of the fall (Fig. 3) and is hinged by a hinge e, to asecond sliding bar f, moving within a groove or mortise in the casing b.

3o Behind the barf, a springf, may be placed.

The bar (Z, as well as the bar f, should have Serial No. l71,537. (Nomodel.)

a slight play in their grooves 0r they and their grooves may be slightlycurved to insure a proper operation of the parts. When the fall isopened, the slide f is drawn out. of case b, and the slide d is drawnout of fall a, (Fig. 3) by the pressure of the fall upon the front ofslide d, aided by the pressure of spring f upon slidef, if such springis used. The descent of the slide d will cause the automatic raising oropening` of the desk c, by means of the finger c2. When the fall isclosed, the slide f is pushed into case h and the slide d is pushed intofall a., by the pressure of the fall upon the back of slide d. Thismotion of the slide d will cause the finger c2 to swing in the oppositedirection and to automatically close the desk (Fig. 2).

Above the upper edge of the desk c, I place a molding g, which overlapsthe edge ot' the desk and presents a neat finish.

The combination of a slotted case with a slotted fall, pivotallyconnected slides f, d, engaging respectively the case and fall, and witha music desk movably connected to slide d, substantially as specified.

JOHN YUEL.

Viitnesses:

F. v. BEIEsEN, A. JoNGHMANs.

